Tie-plate.



M. J. SILBERBERG.

TIE PLATE.

APPLICATION FILED MAR. 28, 1914.

1,100,848. Patented June 23,1914.

UNITED STATES PATENT orrron,

MORTIMER J. s nner muse, OF CHICAGO, I LINoIs.

TIE-PLATE.

To all whom it may concern:

Be it known that I, -.l\/IORTIMER J SIL ER- BERG, a citizen of the United" States, and

resident of Chicago, in the county ofCook and State of Illinois, have invented certain new and .useful Improvements in Tie-Plates,

I of which the following is a specification.

My inverition relates to railway track construction and hasparticular reference to a novel tie plate and clip particularly adapted for use with screw spikes. 1 f

It is common practice on many'railroads to place beneath the rails on'each tie a tie plate in order to increase the bearing surface between the rail and the plate. Such plates have taken many forms but few of those being adapted for use with screw spikes. I11 order to utilize this desirable form of fastening a special form of plate must be provided. Such a plate mustprovide for a secure and extended bearing for the head of the screw spike, such bearing being preferably in the form of a plane surface whereby the flange or head of the spike may be rotated freely thereon.

In many of the screw spike tie plates pro-' vision is made for direct contact between the rail andthe head of the spike. This requires that the under surface of the spike shall be conical or at least inclined to correspond to'the angle of the top surface of the rail base. Thus only a line or point contact is secured between the spike and-rail.

An object of my invention is to provide means whereby an extended bearing surface is secured, and also to provide means for utilizing a screw spike having a flange with a horizontal under surface; These results are secured by the use of a clip such as shown. However, due to inequalities and permissible variations, such a clip in order to certainly engage the rail base must have a single point of contactwith the tie plate, whichpoint preferably acts as a fulcrum. Thus a broad bearing is secured between clip, rail base and spike, and the clip is certain to engage the rail under all conditions of variation in material.

In'the accompanying drawings, Figure 1 is a transverse section of a railway rail specificationof Letters Patent. Patented June 23, 1914. Application filed March 28, 1914. Serial No. 827,947. 7

with which my novel tie plate is associated,

and, Fig. 2 is a'plan view of the same.

against which the base of the rail may abut.

Thuslthe rail is securely held in transverse alinement without direct contact with the screw spike or the head thereof. In the body 10, of the plate and located at the sides of the flanges 11, are apertures within which the screw spikes 12 are located. These spikes 'areeach provided with a squared head 13,. and anannular horizontal flange.

14. Interposed between the tie ,plate and the flange 14; of the spike is a clip 15, provided with an extension 16, o\-'erlying-the base '17, of a rail. The lower surface of the clip 15 is shaped to provide substantially line contact with the tie plate in order to assure a perfect engagement thereof. As shown, the lower face of the clip is diagonal with relation to the top thereof, as at 18, providing the contact point-19. From the point 19,

the clipe'xtends upward, terminating in the reduced extension 16, which overlies the rail. The upper surface of the clip 15 is seen to be a plane surface and thus provides a bearing for the flange 14 of the screw spike. I i

1. tie plate having a rail abutt-ingl'lange, a clip superposed on-said plate, overlying said flange and engaging a railroad rail, and a screw spike passing through said clip and said plate, substantially as described. I

2. In combination, a tie plate having a rail abutting flange and an aperture for a spike, a clip superposed on said plate and PlOJGCtlllg over said flange, sald 011 being constructed .to provide substantially line contact with said plate, and a screw spike passing through said clip and said plate, substantially as described.

3. In combination, a tie plate having a rail abutting flange and a spike aperture, a clip having a substantially horizontal plane upper surface forcontact with a corresponding surface on the head of a screw spike, the

lower surface of the clip being constructed lower surface beveled to correspond substan- 10 to provide for. line contact with the plate, tially to the angle of inclination of the up.- and a screw spike projected through said per surface of a rail base, said clip having clip and said plate, substantiallyv as desubstantially line contact with said plate,-

- substantially as described.

4; lnjcombination, a tie plate having a MORTIMER J. SILBERBERG. rail abutting flange and a spike aperture, a Witnesses: clip and a screw spike extended through 7 CHARLES P. SCHWARTZ,

said clip and said ,plate, said clip having its H. EILENBERGER. 

